Interstate McBee - Cummins B/ISB/QSB Oil Cooler - 5 Plate - M-3921557

The Interstate-McBee Oil Cooler (M-3921557) features a 5-plate design engineered for Cummins® B/ISB/QSB applications. This heavy-duty replacement component ensures efficient heat dissipation, helping to maintain oil integrity and extend engine life—especially in demanding environments like agriculture, construction, and industrial use.

Key Features:

• 5-plate design for optimal oil cooling

• Built to OEM specifications for reliable performance

• Heavy-duty construction for high-stress diesel environments

• Perfect for rebuilds, replacements, or preventative maintenance

Engine Compatibility:
Compatible with Cummins® B/ISB/QSB series engines
(Contact us to confirm compatibility with your specific engine model)

⚠️ Opened packages are not eligible for return.